Hi guys!
I was wondering if there was another way of limiting users data without doing the whole hotspot thing? Is it at all possible to make it limit total data on say an ethernet port?

If not is the VLAN with multiple hotspots the only way to go? The reason i ask is because I have two offices i have to link and manage data useage. The way i have seen is the use of hotspots again but i am keen to try something different

Yes, you can limit bandwidth data just with queues (/queue simple or /queue tree),
http://wiki.mikrotik.com/wiki/Queue

HotSpot should be used, when authentication and accounting are necessary for your clients.

dang so that would mean that using the VLAN's and Hotspots are the best way forward? Otherwise it appears to be quite a pest to add an extra GB if needed ;p

Thanks sergejs!

Ah, you mean to limit download/uploaded amount of bytes, then there is HotSpot/PPPoE.
Queue are limiting bandwidth rate, not amount of uploaded/downloaded bytes.